SERVICE INSTRUCTIONS
Brake Wheel Inspection
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Brake wheels should be inspected after every two months, 150 hours of operation or 5,000 stops, whichever occurs first. The brake wheel, as well as the brake lining, should be replaced if any of the following conditions are observed:
- If more than 10% of the original rim thickness (note J below) has been worn away due to normal service. Measurement of brake wheel diameters must not be less than:
|
Size
6 x 3
8 x 3
10 x 4 |
Min. Dia.
5-29/32"
7-29/32"
9-7/8" |
|
Size
14 x 6
18 x 8
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Min. Dia.
13-7/8"
17-7/8"
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- If the brake wheel is scored more than 1/16" deep over more than 25% of the braking surface.
- If the brake wheel is scored in any area more than 1/8" deep on 14x6 or 18x8 brake wheel, or more than 3/32" on 6x3, 8x3 or 10x4 brake wheel.
- If the brake wheel is heat checked or blued over more than 50% of the brake surface. (This condition is caused by overheating. The cause of overheating should be investigated and corrected.)
- If a crack is found on the rim, web or hub, the brake wheel should be replaced immediately.
Replacement Brake Wheels are available. STOCK bore brake wheel dimensions and part numbers are tabulated below. FINISH bore brake wheels are available for current steel mill type motors.
Brake Wheels are identified by "J" part number stamped on the edge of the rim and on the nameplate on the web.
|
Wheel
No. |
DIMENSIONS IN INCHES |
Weight
Lbs. |
Wk3 |
| D |
C |
O |
G |
J |
L |
M |
U |
E |
| JE76200 |
6 |
3.25 |
3.12 |
3.00 |
.50 |
1.00 |
.50 |
- |
4.00 |
16 |
.55 |
| JE76225 |
8 |
3.25 |
3.12 |
3.50 |
.50 |
1.00 |
.50 |
- |
4.00 |
26 |
1.41 |
| JE76250 |
10 |
4.25 |
3.12 |
5.00 |
.62 |
1.44 |
.62 |
1.00 |
5.50 |
55 |
4.25 |
| JE76275 |
14 |
6.50 |
4.25 |
5.00 |
.88 |
2.12 |
.88 |
1.50 |
5.50 |
121 |
24.2 |
| JE76300 |
18 |
8.50 |
5.25 |
7.50 |
.88 |
2.62 |
1.25 |
1.88 |
6.38 |
230 |
75.8 | |
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